body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,form,fieldset,input,textarea,p,blockquote,th,td {margin:0;padding:0; font-family: Microsoft YaHei !important;} 
html {
    overflow-x: hidden;
}
ul {
    list-style: none;
}
a {
    text-decoration: none !important;
}
.w {
    width: 1200px;
    margin: 0 auto;
}
.fl {
    float: left;
}
.fr {
    float: right;
}
a:active {
    color: #fff !important;
}
/*清除浮动*/
.clear:after{content:"";display:table;clear:both;font-size:1px;line-height:0;height:0;}
/* 允许单词内换行 */
html {
    word-break:break-all; 
}
/* 导航条样式 */
.top {
    height: 80px;
    padding: 0 130px 0 230px;
   background-color: #fff;
}
.top img {
     margin-top: 15px; 
}
.navbar {
    border: 0;
}
.navbar-default {
    background-color: #fff;
    margin-bottom: 15px;
}
.navbar-toggle {
    margin-right: 5px !important;
}
 .a-active {
    color: #fff !important;
    background-color: #3aa5ff!important;
} 
.navbar-collapse ul li a {
    line-height: 80px;
    padding: 0 25px;
    font-size: 16px;
    margin-right: 5px;
}
.navbar-collapse ul li a:hover{
    color: #fff !important;
    background-color: #3aa5ff !important;
}
@media screen and (max-width: 768px) {
    .top {
        padding: 0 15px;
        width: 100%;
        position: fixed;
        height: 50px;
        z-index: 999;
        background-color: #000;
    }
    .top img {
        margin-top: 15px !important;
        height: 25px !important;
    }
    .top .navbar-toggle {
        margin-right: 0!important;
    }
    .top .navbar-toggle {
        padding-top: 7px!important;
        padding-bottom: 7px!important;
        border: 0;
        position: relative;
    }
    .top .navbar-toggle:active {
        background-color: rgba(255,255,255,0)!important;
    }
    .top .navbar-toggle:hover {
        background-color: rgba(255,255,255,0)!important;
    }
    .top .navbar-toggle span {
        height: 2px;
        width: 20px;
    }
    .top .navbar-collapse {
        background-color: rgba(255,255,255,0)!important;
    }
     .top .navbar-toggle span:nth-child(2)::before {
        content: '';
        width: 4px;
        height: 2px;
        background-color: #888;
        position: absolute;
        right: 30px;
        top: 7px;
    } 
    .top .navbar-toggle span:nth-child(3)::before {
        content: '';
        width: 4px;
        height: 2px;
        background-color: #888;
        position: absolute;
        right: 30px;
        top: 13px;
    } 
    .top .navbar-toggle span:nth-child(4)::before {
        content: '';
        width: 4px;
        height: 2px;
        background-color: #888;
        position: absolute;
        right: 30px;
        top: 19px;
    } 
    .navbar-collapse ul {
        margin-top: 0px;
        background-color: rgba(0, 0, 0, .6); 
    }
    .navbar-collapse ul li {
        border-bottom: 1px solid #222;
    }
    .navbar-collapse ul li a {
        margin-right: 0!important;
        line-height: 40px;
        font-size: 14px;
        /* text-align: center; */
        color: #fff!important;
    }
    .top .navbar-default {
        background-color: #000;
    }
    .top .navbar-header img {
        height: 35px;
        margin: 5px 0;
    }
    .top .navbar-header .navbar-toggle {
        padding: 4px;
        margin: 10px;
        margin-top: 11px;
        cursor: pointer;
        -webkit-tap-highlight-color:transparent;
    }
    .top .navbar-default .navbar-collapse {
        width: 100%;
        position: fixed;
        top: 45px;
        background-color: #fff;
        left: 0;
        z-index: 999;
    }
}